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TUNE YOUR LOOP: Electrical Noise Effects on Instrumentation Control Equipment

TUNE YOUR LOOP: Questions to keep you sharp.



1. For a ground to be an effective ground it must have a low resistive path to earth
(or the conductive surface used as earth).

  1. TRUE
  2. FALSE

2. What National Electrical Code (NEC) Article governs grounding?

  1. 240
  2. 250
  3. 430
  4. 501

3. Potential is measured in volts.

  1. TRUE
  2. FALSE

4. Lightning is a form of ESD.

  1. TRUE
  2. FALSE

5. DC Control voltage (24 V or less) must be grounded.

  1. TRUE
  2. FALSE


What are your answers before you read ahead?

1. a

2. b

3. a

4. a

5. b


From the ISA Course Electrical Noise Effects on Instrumentation Control Equipment (TI21) pre-instructional survey.


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